Marisa Poster, co-founder of PerfectTed, shares the story of the creation of a new kind of energy drink. She tells us how Europe’s first matcha green tea energy drink secured a £50,000 investment from Steven Bartlett and Peter Jones on "Dragons’ Den”. Plus: we meet the creators of Ocean Bottle, a brand that aims to combat the issue of marine plastic pollution with its sleek, reusable water bottles.

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